99997412 has 12 divisors (see below), whose sum is σ = 175136640. Its totient is φ = 49958376.

The previous prime is 99997411. The next prime is 99997427. The reversal of 99997412 is 21479999.

It is not an unprimeable number, because it can be changed into a prime (99997411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112 + ... + 14727.

It is an arithmetic number, because the mean of its divisors is an integer number (14594720).

Almost surely, 2^99997412 is an apocalyptic number.

It is an amenable number.

99997412 is a deficient number, since it is larger than the sum of its proper divisors (75139228).

99997412 is a wasteful number, since it uses less digits than its factorization.

99997412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20170 (or 20168 counting only the distinct ones).

The product of its digits is 367416, while the sum is 50.

The square root of 99997412 is about 9999.8705991628. The cubic root of 99997412 is about 464.1548791828.

The spelling of 99997412 in words is "ninety-nine million, nine hundred ninety-seven thousand, four hundred twelve".